The effect of pressure on muscle lactate dehydrogenase activity of some deep-sea and shallow-water fishes

Gillen, Robert G.

doi:10.1007/bf00349340

Cited by 15 publications

(3 citation statements)

References 9 publications

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“…As an example, reduced lactate consumption in MSI-10 at 8 MPa is noticeable and could have hindered subsequent fermentation (Figures S5 and S6). This observation is in alignment with previous enzymatic studies, which suggested that HP and low temperatures significantly decrease lactate dehydrogenase activity, an enzyme that reversibly catalyzes pyruvate to lactate conversion (Gillen, 1971).…”

Section: Metabolic Energy Analysissupporting

confidence: 92%

Pre‐incubation conditions determine the fermentation pattern and microbial community structure in fermenters at mild hydrostatic pressure

Ceron-Chafla

García‐Timermans

Vrieze

et al. 2022

Biotech & Bioengineering

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Fermentation at elevated hydrostatic pressure is a novel strategy targeting product selectivity. However, the role of inoculum history and cross-resistance, that is, acquired tolerance from incubation under distinctive environmental stress, remains unclear in high-pressure operation. In our here presented work, we studied fermentation and microbial community responses of halotolerant marine sediment inoculum (MSI) and anaerobic digester inoculum (ADI), pre-incubated in serum bottles at different temperatures and subsequently exposed to mild hydrostatic pressure (MHP; < 10 MPa) in stainless steel reactors. Results showed that MHP effects on microbial growth, activity, and community structure were strongly temperature-dependent. At moderate temperature (20°C), biomass yield and fermentation were not limited by MHP; suggesting a cross-resistance effect from incubation temperature and halotolerance. Low temperatures (10°C) and MHP imposed kinetic and bioenergetic limitations, constraining growth and product formation. Fermentation remained favorable in MSI at 28°C and ADI at 37°C, despite reduced biomass yield resulting from maintenance and decay proportionally increasing with temperature. Microbial community structure was modified by temperature during the enrichment, and slight differences observed after MHP-exposure did not compromise functionality. Results showed that the relation incubation temperature-halotolerance proved to be a modifier of microbial responses to MHP and could be potentially exploited in fermentations to modulate product/biomass ratio.

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Section: Metabolic Energy Analysissupporting

confidence: 92%

Pre‐incubation conditions determine the fermentation pattern and microbial community structure in fermenters at mild hydrostatic pressure

Ceron-Chafla

García‐Timermans

Vrieze

et al. 2022

Biotech & Bioengineering

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“…The influence of temperature on pressure effects has been noted in other studies but in some cases the results conflict (Napora, 1964;Teal and Carey, 1967;Johnson and Eyring, 1970;Gillen, 1971;Childress, 1977;George, 1979b). This may be caused by several factors.…”

Section: Discussionmentioning

confidence: 80%

EFFECTS OF PRESSURE AND TEMPERATURE ON THE EKG AND HEART RATE OF THE HYDROTHERMAL VENT CRABBYTHOGRAEA THERMYDRON(BRACHYURA)

Mickel¹,

Childress²

1982

The Biological Bulletin

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Effects of pressure and temperature on the electrocardiogram (EKG) and heart rate of crabs from the Galapagos deep-sea (2500 meters) hydrothermal vents were studied. Vent crabs require high hydrostatic pressure for long term survival. During decompression their EKG is disrupted and their heart rate is reduced. Low temperature reduces these decompression effects. The crabs have a higher temperature tolerance while at their environmental pressure (238 atm) and can withstand shortterm exposure to temperatures as high as 37C. Possible mechanisms for the action of pressure on neuromuscular systems are discussed. Habits and physiological capabilities of the crabs in the unusual vent environment are suggested on the basis of their physiological tolerances.

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“…Morita and associates also suggest such connections on the basis of their investigations upon bacteria dehydrogenases (Hill and Morita,t964=;Morita,f967). More recent experiments, carried out in the same direction, deal with fructose diphosphatase from the liver (Hochachka et al,t970) and lactate dehydrogenase from the musculature of marine fishes (Gillen, 1971).…”

Section: Introductionmentioning

confidence: 98%

Influence of hydrostatic pressure on the activity of alkaline phosphatase in some marine invertebrates

Ponat

Theede

1973

Marine Biology

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Investigations on the influence of pressure on the activity of alkaline phosphatase of some marine invertebrates from the Baltic Sea were carried out at temperatures between 5 ~ and 55 ~ The results obtained indicate ~hat the influence of pressure on alkaline phosphatase activity is modified by temperature. At low temperatures, pressure has a decreasing effect on enzyme activity, while it has an increasing effect at higher temperatures. The gill homogenates of the relatively pressure-resistent bivalves Cyprina islandica and Mytilus eduIis show a lower decrease of activity under pressure at low temperatures than the gill-homogenate of Carcinus maenas and a purified enzyme preparation of a homoiothermal animal.

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The effect of pressure on muscle lactate dehydrogenase activity of some deep-sea and shallow-water fishes

Cited by 15 publications

References 9 publications

Pre‐incubation conditions determine the fermentation pattern and microbial community structure in fermenters at mild hydrostatic pressure

Pre‐incubation conditions determine the fermentation pattern and microbial community structure in fermenters at mild hydrostatic pressure

EFFECTS OF PRESSURE AND TEMPERATURE ON THE EKG AND HEART RATE OF THE HYDROTHERMAL VENT CRABBYTHOGRAEA THERMYDRON(BRACHYURA)

Influence of hydrostatic pressure on the activity of alkaline phosphatase in some marine invertebrates

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